Miner&#39;s lamp.



J. VAN LIEW.

MINERS LAMP.

APPLICATION FILED APR.23, 1912.

1,090,250. Patented Mar.17,1914.

2 SHEETB-SHEET 1.

M'Zwesses: I72 wrzior'x Mk, 3% v CL/ v 041134 J. VAN LIEW.

MINER/S LAMP.

APPLICATION FILED 102a, 1912.

Patented Mar. 17, 1914.

2 SHEETS-SHEET 2.

lnverziaf JOHN VAN LIEW, OF CHICAGO, ILLINOIS.

MINER/S LAMP.

Specification of Letters Patent.

"atented ili'ar. 17?, 191 1.

Application filed April 23, 1912. Serial No. 692,627.

To all whom it may concern:

Be it known that I, Jon) VAN Lrnw, a citizen of the United States. and a resident of Chicago, county of Cook, and State of Illinois, have invented certain new and useful Improvements in bl i'ners Lamps, of which the following is a full, clear, and eX- act description.

The invention relates to miners lamps and seeks to provide an improved construction which obviates the necessity of employing solder for connecting the wick tube to the lamp body. Preferably, also, the con necting of other parts is effected without the use of solder.

The improved lamp is designed to burn both oil and wax. "When wax is used. it must be melted before it can be properly fed by the wick, so that the wick tube and lamp body are necessarily subjected to considerable heat which frequently melts the solder usually employed to join these parts. In accordance with the present invention, the lamp body and wick tube are integrally formed of sheet metal.

The invention also seeks to provide an improved heat conducting member extending downwardly through the Wick tube and into the lamp body.

A further object of the invention is to provide an improved form of flame deflector which. can be shifted into and out of the flame space at the outer end of the wick tube and which acts to conductair into the flame and assist combustion, and it is also preferably in contact with the heat conducting member to render the operation of the latter efficient. The deflector is shiftable so that it may be moved out of the flame space when oil is used.

The invention consists in the features of improvement hereinafter set forth, illustrated in the preferred form in the accompanying drawings and more particularly pointed out in the appended claims.

In the drawings, Figure 1 is a side elevation of the improved lamp. Fig. 2 is a longitudinal section on the line 2-2 of Fig. 1. Fig. 3 is a horizontal section on the line 3-3 of Fig. 2. Fig. 4: is a detail lougitudinal section on an enlarged scale through the wick tube and adjacent portions of the lamp body. Fig. 5 is a detail section on the line 5--5 of Fig. l. Fig. 6 is a plan view of the blank from which the lamp body is formed. Fig. 7 is a perspective View showing the lamp body partly forn'led. Fig. 8 is a view of the blank from which the heat conducting member is made. i

The improved lamp comprises a body 10, a wick tube 11, a bottom plate 12 fixed to the lower end of the lamp body and a hinged cover 1 at its upper end. The lamp body is circular in cross section and preferably tapers slightly from its lower to its upper end. The lamp body and the wick tube are integrally formed from a sheet metal strip (1, of the outline shown in Fig. (3. A portion of the sheet metal blank or strip between its ends, and preferably the central portion thereof, is first bent or pressed about suitable dies to form the wick tube 11. As shown, the central projecting part 7) forms the upper cylindrical end of the wick tube. Portions (1 of the blank or metal strip (indicated by dotted lines in Fig. 6) are broughttogether behind the wick tube to form a connecting web it of double thickness between the upper portion of the lamp body and the wick tube. The thicknesses of this web are securedtogether in any suitable manner and in'eferably by a rivet The edges of the metal blank or strip a are provided with reverted flanges 16 which are interlocked and pressed together to form a connecting seam extending longitudinally of the lamp body from the top to the bottom thereof and which, as shown, is preferably arranged diametrically opposite the wick tube. The lower edge of the lamp body is provided with an outturned flange 17 and the bottom 12 is provided with anedge portion or flange 18 which is bent over and pressed into engagement with the flange 17.

The blank or which forms the lamp body is provided at its upper edge with an integral lug 19 which is bent around one side of an elongated hinge loop 20 and the cover 13 is provided with a similar lug 21 which is bent around the other member of the hinge loop. The cover is also preferably provided with a dished part 22 which snugly fits within the upper end of the lamp body. The upper edge of this dished part is provided with a flange 23 and the cover is provided with an edge portion 2 1 which is bent around and pressed into engagement with the flange 23. To insure a tight fit of the cover at a point opposite the web 14, a small piece of lead 25 (see Fig. 1) is preferably arranged between the two thicknesses of the web by the rivet 15. A book 26 for supporting the lamp body is secured to the rear portion thereof, diametrically opposite the wick tube by a clip 27 which overlaps the shank of the hook and is riveted to the body of the lamp on opposite sides of the longitudinal seam. The clip thus not only serves to hold the hook in place, but also strengthens the connection between the edges of the metal strip from which the lamp body is formed.

To facilitate the use of wax with the lamp, a heat conducting member extends clownwardly through the wick tube into the lamp body. This heat conducting member is preferably formed of copper or similar metal of high conductivity. Fig. 8 illustrates a blank from which the preferred form of this conducting strip or member is formed. The upper portion (Z of the blank is bent to form a cylindrical part 28 which fits within the outer end of the wick tube and which is preferably provided with a lug 29 which is bent over the upper edge of the wick tube. From the cylindrical portion 28, extend downwardly two divergent strips 30 which are preferably bent around the corners between the lamp body and the wick tube and pressed snugly into engagement with the inner surfaces of these parts. This conducting member is inserted before the bottom 12 is placed on the lamp body and the lower ends of the strips 30 are secured between the interlocked flanges 17 and 18 of the lamp body and bottom plate, as shown in Fig. VVit-h this arrangement, the heat is effectively conveyed from the upper end of the wick tube to the wax within the lamp body. The heat conducting member is securely held in position and the parts thereof are in close contact with the inner faces of the wick tube and lamp body, so that they do not interfere with the wicking or filling of the lamp.

A deflector 31 is arranged above the outer end of the wick tube. This deflector is formed of a flat, U-shaped piece of sheet metal and when in operative position, is arranged in its vertical plane and extends transversely through the central portion of the flame space above the outer end of the wick tube. W'hen so positioned, it divides the flame and creates a combustion area into which air is drawn to effect complete combustion. The deflector is pivotally mounted so that it may be shifted into and out of the flame space. For this purpose, in the preferred form shown, it is provided with integral end portions 32 which are twisted into planes at right angles to the main body of the deflector and which. are pivotally connected to av supporting ring 33 fitted upon the outer end of the wick tube. This supporting ring is preferably formed of a strip of copper or like metal of high conductivity. The ends of-this strip are connected by an integral lug 34: on one end bent inwardly through an opening in its opposite end. At

diametrically opposite points the ring or support 33 is provided with offsetbosses 35 and the end portions 32 of the deflector are provided with lugs 36 which are bent inwardly around the edges of openings formed in the bosses By this construction the deflector 31 is pivotally connected to the supporting ring The ring and the de fle-ctor are assembled before they are placed in position upon the end of the wick tube and when the ring is slipped over the end of the wick tube, a pair of lugs 37 upon the ends of the wick tube are bent downwardly over the edges of the supporting ring to hold it in position. lVhen the ring is thus slipped over the end of the wick tube it. is in contact with the lug 29 extending from the upper end of the heat conducting member so that, when the deflector 31 is positioned within the flame space, the supporting ring 33 on which the deflector mounted, the cylindrical. part 23 and the divergent strips or members 30 act 11 an eficient manner to conduct the heat to the wax within the lamp body. If oil is used, the deflector can be readily swung to one side or the other, out of the flame space. lVhen in position within the flame space, it aids, as stated, in creating a draft of air through the flame to thereby effect complete combustion.

The parts of the lamp are connected without the use of solder and the formation of the wick tube integrally with the lamp body obviates the necessity of a joint between these parts and, when wax is used, the lamp and its parts can become quite hot without damage. As stated, it is quite necessary when wax is used, to heat up the wax within the lamp body in order that it can be properly fed by the wick to the flame. To prevent leaking at the seams, all portions of the lamp are provided with a coat of japan baked on at a comparatively high temperature.

It is obvious that changes may be mate in the details set forth without departure from the essentials of the invention as defined in the claims.

I claim as my invention 1. In a miners lamp, a lamp body comprising a bent sheet metal strip having its edges secured together and a portion thereof bent to form an integral wick-tube and a bracing web of double thickness between the top of said lamp body and said wick-tube, a cover snugly fitting within the top of said lamp body and a metal piece secured between the thicknesses of said web and having its inner edge flush with the inner surface of said lamp body and abutting against the edge of said cover, substantially as described.

2. In a miners lamp, a lamp body, a sub stantially cylindrical wick-tube projecting therefrom, a conducting copper strip extending through said wick-tube and into the lower portion of said lamp body, said strip being arranged snugly in engagement with the inner face of said tube and said lamp body and being secured at its ends to the upper portion of the wick-tube and to the lower portion of said body and a flame dcflector mounted upon the upper end of said wick-tube and in contact with said conducting strip, substantially as described.

3. In a miners lamp, a. lamp body, a wick-tube projecting therefrom, a conducting strip extending through the wick-tube into said body and snugly abutting throughout its length against the inner faces of said tube and body, the upper end of said conducting strip being secured to the upper end of said wick-tube and its lower end to the lower portion of said lamp body, substantially as described.

4t. In a miners lamp, a lamp body, a wick tube extending therefrom, and a heat conductor comprising a part fitted within the upper portion of said wick tube and two divergent strips extending downwardly therefrom in opposite directions through said wick tube and into said lamp body, said divergent strips being arranged against the opposite inner side faces of said lamp body, substantially as described.

5. In a mincrs lamp, a lamp body, a substantially cylindrical wick tube extending therefrom and a heat conductor comprising a cylindrical portion fitted within and se cured to the upper end of the wick tube and two divergent strips extending downwardly therefrom through said wick tube and into said lamp body, said strips being arranged against the side faces of said lamp body on opposite sides of said wick tube and having their lower ends secured to said body, substantially as described.

6. In a miners lamp, a lamp body, a bottom therefor, said body and bottom having interlocked flanges, a wick-tube projecting from said lamp-body, and a heat conducting strip extending through said tube and body, said strip having its upper end overlapping the upper end of said tube and its lower end secured between the interlocked flanges of said lamp body and bottom, substantially as described.

7 In a miners lamp, a lamp body, av bottom therefor, said body and bottom having interlocked flanges, a substantially cylindrical wick-tube projecting from said lampbody, and a heat conductor comprising a cylindrical portion fitted within the upper end of said wick-tube and two divergent strips extending downwardly therefrom into said body and arranged against the opposite inner side faces thereof and having their lower ends secured between the interlocked flanges of said body and said bottom, substantially as described.

8. In a miners lamp, a lamp body, a wicktube projecting therefrom, a sleeve fitted upon the upper end of said wick tube, a U shaped flame deflector pivotally mounted on said sleeve and a heat conducting strip extending through said tube and in contact at its upper end with said sleeve, substantially as described.

9. in a miners lamp, a lamp body, a wicktube projecting therefrom, a heat conducting strip extending through said tube into said lamp body, a flame deflector extending transversely across the upper open end of said tube, and a sleeve fitted on said wick tube in contact with the upper end of said strip whereon said flame deflector is pivotally mounted, substantially as described.

10. In a miners lamp, a lamp body, a

wick-tube projecting therefrom, a heat conducting strip extending through said tube into said lamp body, and having its upper end bent over the upper end of said wicktube, a sleeve fitted upon the upper end of said tube and engaging the upper end of said conducting strip, and a U-shaped flame deflector pivotally mounted on said sleeve, substantially as described.

11. In a miners lamp, a lamp body, a wick tube extended therefrom, a flat, U shaped wick deflector of sheet metal arranged to extend transversely through the flame space with its wide faces substantially parallel to the axis of said wick tube, the ends of said deflector being substantially connected to the upper end of said tube, substantially as described.

12. In a miners lamp, a lamp body, a wick tube extended therefrom, a flat, U shaped wick deflector of sheet metal arranged to extend transversely through the flame space with its wide faces substantially parallel to the axis of said wick tube, the ends of said deflector being bent at right angles to the main body portion thereof and pivotally connected to the upper end of said tube, substantially as described.

JOHN VAN LIICW.

itnesses Ennanon I'IAonNoN, Ka'rnamxn Grnanaoi-r.

Copies of this patent may be obtained for five cents each, by addressing the "Commissioner of Patents, Washington, D. C. 

